<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <button id='btn'>发起get请求</button>
</body>
<script>
    var btn = document.getElementById('btn');
    btn.onclick = function () {
        fetch("http://localhost:8081/getdata?newsId=1")
            .then(res => res.text())
            .then((res) => {
                console.log(res)
            });
    }
</script>

</html>